Server Status on my main website...

Forgive me if this has been asked a thousand times, but is there a way that I can show the status of my server on my hosting website? Preferibly just a single generic Green Yellow and Red indicator that I can plug in to a page.

There are various server monitoring scripts that are available both simple and complex which you can install on your server or have it remotely hosted. The only url I can think of at the moment for a server monitoring tool is Flutt Server Status. I'd also suggest checking out some of the following script repositories and running a search: